100分求高手幫忙看下這個EF問題

kies123 2013-06-05 09:02:30



    public class SJResourceReqMAS

    {



        [Key]

        public int rr_Id { get; set; }

        [Display(Name = "申請人")]

        public string rr_requsr { get; set; }



        [Display(Name = "電話")]

        public string rr_reqext { get; set; }



        [Display(Name = "申請日期")]

        public System.DateTime? rr_date { get; set; }

        public virtual SJResourceReqDtl SJResourceReqDtl { get; set; }

  public partial class SJResourceReqDtl

    {

        [ForeignKey("SJResourceReqMAS")]

        [Key, Column("rd_Id", Order = 1)]

        public int rd_Id { get; set; }

       

        

     

       

        [ForeignKey("SJResourceCatMAS")]

        [Key, Column("rc_Id", Order = 2)]

        public int rc_Id { get; set; }

        

        public Nullable<short> rd_qty { get; set; }

        public string rd_desc { get; set; }



        

        public virtual SJResourceCatMAS SJResourceCatMAS { get; set; }

        public virtual List<SJResourceReqMAS> SJResourceReqMAS { get; set; }

    }

報錯：The foreign key component 'rd_Id' is not a declared property on type 'SJResourceReqMAS'. Verify that it has not been explicitly excluded from the model and that it is a valid primitive property. 、

外国关键组件的rd id”不是一个声明的属性类型的SJResourceReqMAS’。确认它没有被明确地排除在模型,它是一个有效的原始属性。

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V0lD 2013-06-06

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引用 5 楼 u010950894 的回复:

[quote=引用 4 楼 doncle000 的回复:] 这ef代码看起来是自己写的,不能用向导方式添加么?用向导从没遇到这问题

向导方式？怎麼用的？[/quote]添加=>新建项=>数据=>ADO.NET实体数据模型(默认文件扩展名是.edmx)

曹阳888 2013-06-05

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public class R_AccountPower
    {
        /// <summary>
        /// 构造函数
        /// </summary>
        public R_AccountPower()
        {

        }

        /// <summary>
        /// 权限ID
        /// </summary>
        [Key]
        public int ID { get; set; }

        /// <summary>
        /// 角色ID
        /// </summary>
        public int roleID { get; set; }//外键
        public Role Role { get; set; }
        /// <summary>
        /// 模块ID
        /// </summary>
        public int modulesID { get; set; }//外键

        public Modules Modules { get; set; }

        /// <summary>
        /// 页面元素ID
        /// </summary>
        public string elementID { get; set; }//外键

        public PageElement PageElement { get; set; }

        /// <summary>
        /// 将此实例的值转换为 System.String
        /// </summary>
        /// <returns></returns>
        public override string ToString()
        {
            return Common.TConvert.ObjectToString(this);
        }
    }


        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);
            modelBuilder.Entity<R_AccountPower>().HasRequired(r => r.Modules).WithMany(m => m.R_AccountPower).HasForeignKey(r => r.modulesID).WillCascadeOnDelete(false); ;
            modelBuilder.Entity<R_AccountPower>().HasRequired(r => r.PageElement);
            modelBuilder.Entity<R_AccountPower>().HasRequired(r => r.Role);
        }

kies123 2013-06-05